Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

[pandora-kernel.git] / drivers / i2c / chips / max6875.c

diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c
index 88d2dde..76645c1 100644 (file)
--- a/drivers/i2c/chips/max6875.c
+++ b/drivers/i2c/chips/max6875.c
@@ -199,8 +199,7 @@ static int max6875_detect(struct i2c_adapter *adapter, int address, int kind)
        mutex_init(&data->update_lock);
 
        /* Init fake client data */
-       /* set the client data to the i2c_client so that it will get freed */
-       i2c_set_clientdata(fake_client, fake_client);
+       i2c_set_clientdata(fake_client, NULL);
        fake_client->addr = address | 1;
        fake_client->adapter = adapter;
        fake_client->driver = &max6875_driver;
@@ -214,13 +213,17 @@ static int max6875_detect(struct i2c_adapter *adapter, int address, int kind)
                goto exit_kfree2;
 
        if ((err = i2c_attach_client(fake_client)) != 0)
-               goto exit_detach;
+               goto exit_detach1;
 
-       sysfs_create_bin_file(&real_client->dev.kobj, &user_eeprom_attr);
+       err = sysfs_create_bin_file(&real_client->dev.kobj, &user_eeprom_attr);
+       if (err)
+               goto exit_detach2;
 
        return 0;
 
-exit_detach:
+exit_detach2:
+       i2c_detach_client(fake_client);
+exit_detach1:
        i2c_detach_client(real_client);
 exit_kfree2:
        kfree(fake_client);
@@ -229,14 +232,24 @@ exit_kfree1:
        return err;
 }
 
+/* Will be called for both the real client and the fake client */
 static int max6875_detach_client(struct i2c_client *client)
 {
        int err;
+       struct max6875_data *data = i2c_get_clientdata(client);
+
+       /* data is NULL for the fake client */
+       if (data)
+               sysfs_remove_bin_file(&client->dev.kobj, &user_eeprom_attr);
 
        err = i2c_detach_client(client);
        if (err)
                return err;
-       kfree(i2c_get_clientdata(client));
+
+       if (data)               /* real client */
+               kfree(data);
+       else                    /* fake client */
+               kfree(client);
        return 0;
 }